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AssigneesTechnicolor, Inc., O.M.S. 88 Srl
InventorsGiancarlo Marcari, Osvaldo Valelli
Estimating the term…
The invention concerns an apparatus for developing films, particularly movie films, comprising a plurality of substantially vertical frames (1), for supporting and winding the film (3), placed within the different treatment rooms, each one of said frames (1) providing a plurality of transmission turns for the film, each one of said turns substantially comprising an upper pulley (2) and a lower pulley (4), and tensioning means of the film acting on the lower pulley (4), said apparatus being characterised in that said tensioning means of the film (3) in the single turns are comprised of piston means (11), provided under the lower pulley (4) of said turn, a single feeding system being provided for the piston means (11) of each frame (1).
Apparatus for developing films, particularly movie films, comprising a plurality of substantially vertical frames, for supporting and winding the film, placed within the different treatment rooms, each one of said frames providing a plurality of transmission turns for the film, each one of said turns substantially comprising an upper pulley and a lower pulley, and tensioning means of the film acting on the lower pulley, said apparatus being characterised in that said tensioning means of the film in the single turns are comprised of piston means, provided under the lower pulley of said turn, a single feeding system being provided for the piston means of each frame.
Apparatus for developing films, particularly movie films, according to one of the preceding claims, characterised in that said piston is a pneumatic, hydraulic, oleodynamic, oleopneumatic, etc. piston, preferably a pneumatic piston.
Apparatus for developing films, particularly movie films, according to one of the preceding claims, characterised in that said tensioning means of the film comprise a block, within which a chamber for the primary air and a chamber for the secondary air are realised, a frame, supporting each lower pulley of the turns, vertically slidable with respect to said block, and pneumatic piston means, preferably, but not exclusively, one piston means for each turn, placed between the lower part of said frame and said block, in such a way to act as traction on the lower pulley of the turn.
Apparatus for developing films, particularly movie films, according to one of the preceding claims, characterised in that a protection bellow is provided on said piston means.
Apparatus for developing films, particularly movie films, according to one of the preceding claims, characterised in that said lower pulley is oriented with an angle with respect to the upper pulley.
Apparatus for developing films, particularly movie films, according to each one of the preceding claims, substantially as illustrated and described.
Dependencies are inferred from the claim text.